Drill throguh MDX query problem while using filter condition

Hi,
I am using DrillThrough command in Analysis services cubes
when i give siple where condition it is executing perfectly but my problem is to give multifilter from same dimension
like
DRILLTHROUGH
Select
FROM [kostenstelle_200]
where {[BuchungsDatum].[Alle Buchungsdaten].[2006].[Quarter 3].[july].[23]}
,[BuchungsDatum].[Alle Buchungsdaten].[2006].[Quarter 4]}
please help out this how can i use multifilter using same dimension members in where condition.

Regards
thirupathi rao